Thread: RE: [GD-General] Re: JPG libs

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I need something that is portable and with full source code (I need to
support, for example, Macintosh).

Thanks anyway,

Brian

Search on Google for "Independent JPEG Group".

-----Original Message-----
From: Brian Hook [mailto:bri...@py...]=20
Sent: Thursday, November 08, 2001 12:32 PM
To: gam...@li...
Subject: RE: [GD-General] Re: JPG libs

I need something that is portable and with full source code (I need to
support, for example, Macintosh).

Thanks anyway,

Brian

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Gam...@li...
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I hate to sound like a broken record, but I'll repeat the magic words
"Independent JPEG Group".  It's what SDL uses, it's what everything
uses.

http://www.ijg.org

-----Original Message-----
From: Thatcher Ulrich [mailto:tu...@tu...]=20
Sent: Thursday, November 08, 2001 5:51 PM
To: pu...@py...
Cc: gam...@li...
Subject: RE: [GD-General] Re: JPG libs

On Thu, 8 Nov 2001, Brian Hook wrote:

> I need something that is portable and with full source code (I need to
> support, for example, Macintosh).

I'm very partial to the SDL libs for cross-platform stuff.  SDL_image
will load jpg's and many other image types.  Although I think the
actual jpeg library they use might come from an outside source.
Anyway, if you're thinking Mac and other platforms, you should check
out SDL anyway.

http://www.libsdl.org

-Thatcher

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TiVo provide the patches they made to linux on their web-site somewhere.
The actual TiVo application is entirely closed though (which is completely
legit AFAIAA, given that IANAL ;)

Also note that if you don't ship the LGPL JPEG loading code in your game,
but only use it in your internal conversion tools, you don't have to worry
about this at all.

                    "Daniel Vogel" <vo...@ep...>                                                          
                    Sent by:                                      To:     "Thatcher Ulrich" <tu...@tu...>      
                    gam...@li...urc        cc:                                             
                    eforge.net                                    <gam...@li...>    
                                                                  Subject:     RE: [GD-General] Re: JPG libs      

                    11/08/2001 08:08 PM                                                                           

> Hm, the minimal requirement of the LGPL is that the end-user can
> re-link with a different version of the lib, right?  So using a DLL on

This rules out static linking.

> some type of computer is OK... are you thinking about consoles?

Don't get me started on LGPL and consoles/ embedded systems ;)

> Didn't Indrema officially establish that they could ship GPL'd
> software in their planned console?

Of course they could've done that. They just would have had to provide the
source. Anyways, Indrema is not a good example as they were Vaporware. BTW,
I don't think it would've been legal for them to ship with LGPLed software
due to the re-link requirement.

> And what about all those embedded apps that use Linux?
> Is the TiVo source code available?

I bet if you snail mail them they'll provide you with the Linux source code
they use and I doubt they made many changes to the kernel. Keep in mind
that
binary only kernel modules are possible so they could extend the kernel
without much hassle. They also don't have to provide the source to their
app
running on the OS. That's like saying we had to disclose the source to
Unreal Tournament just because it runs on Linux ;-)

> The legalities are too much for my tiny brain, but it seems this
> question will probably come up again now that SDL runs on the PS2.

SDL only runs on the PS2s that run Linux.

- Daniel Vogel, Programmer, Epic Games Inc.

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Gamedevlists-general mailing list
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On Thu, 8 Nov 2001, Brian Hook wrote:

> I need something that is portable and with full source code (I need to
> support, for example, Macintosh).

I'm very partial to the SDL libs for cross-platform stuff.  SDL_image
will load jpg's and many other image types.  Although I think the
actual jpeg library they use might come from an outside source.
Anyway, if you're thinking Mac and other platforms, you should check
out SDL anyway.

http://www.libsdl.org

-Thatcher

It's LGPL. I wish more libraries used something along the lines of the BSD
license.

- Daniel Vogel, Programmer, Epic Games Inc.

> -----Original Message-----
> From: gam...@li...
> [mailto:gam...@li...]On Behalf Of
> Thatcher Ulrich
> Sent: Thursday, November 08, 2001 8:51 PM
> To: pu...@py...
> Cc: gam...@li...
> Subject: RE: [GD-General] Re: JPG libs
>
>
> On Thu, 8 Nov 2001, Brian Hook wrote:
>
> > I need something that is portable and with full source code (I need to
> > support, for example, Macintosh).
>
> I'm very partial to the SDL libs for cross-platform stuff.  SDL_image
> will load jpg's and many other image types.  Although I think the
> actual jpeg library they use might come from an outside source.
> Anyway, if you're thinking Mac and other platforms, you should check
> out SDL anyway.
>
> http://www.libsdl.org
>
> -Thatcher
>
>
> _______________________________________________
> Gamedevlists-general mailing list
> Gam...@li...
> https://lists.sourceforge.net/lists/listinfo/gamedevlists-general
>

On Thu, 8 Nov 2001, Daniel Vogel wrote:

> [Re SDL]
> It's LGPL. I wish more libraries used something along the lines of the BSD
> license.

Hm, the minimal requirement of the LGPL is that the end-user can
re-link with a different version of the lib, right?  So using a DLL on
some type of computer is OK... are you thinking about consoles?
Didn't Indrema officially establish that they could ship GPL'd
software in their planned console?  And what about all those embedded
apps that use Linux?  Is the TiVo source code available?

The legalities are too much for my tiny brain, but it seems this
question will probably come up again now that SDL runs on the PS2.

-Thatcher

> Hm, the minimal requirement of the LGPL is that the end-user can
> re-link with a different version of the lib, right?  So using a DLL on

This rules out static linking.

> some type of computer is OK... are you thinking about consoles?

Don't get me started on LGPL and consoles/ embedded systems ;)

> Didn't Indrema officially establish that they could ship GPL'd
> software in their planned console?

Of course they could've done that. They just would have had to provide the
source. Anyways, Indrema is not a good example as they were Vaporware. BTW,
I don't think it would've been legal for them to ship with LGPLed software
due to the re-link requirement.

> And what about all those embedded apps that use Linux?
> Is the TiVo source code available?

I bet if you snail mail them they'll provide you with the Linux source code
they use and I doubt they made many changes to the kernel. Keep in mind that
binary only kernel modules are possible so they could extend the kernel
without much hassle. They also don't have to provide the source to their app
running on the OS. That's like saying we had to disclose the source to
Unreal Tournament just because it runs on Linux ;-)

> The legalities are too much for my tiny brain, but it seems this
> question will probably come up again now that SDL runs on the PS2.

SDL only runs on the PS2s that run Linux.

- Daniel Vogel, Programmer, Epic Games Inc.